<template>
  <el-form size="small">
    <el-form-item>
      <el-radio v-model="radioValue" :value="1"> 周，允许的通配符[, - * ? / L #] </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :value="2"> 不指定 </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :value="3">
        周期从
        <el-select v-model="cycle01" clearable>
          <el-option v-for="(item, index) of weekList" :key="index" :label="item.value" :value="item.key" :disabled="item.key === 7">{{ item.value }}</el-option>
        </el-select>
        -
        <el-select v-model="cycle02" clearable>
          <el-option v-for="(item, index) of weekList" :key="index" :label="item.value" :value="item.key" :disabled="item.key <= cycle01">{{ item.value }}</el-option>
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :value="4">
        第
        <el-input-number v-model="average01" :min="1" :max="4" /> 周的
        <el-select v-model="average02" clearable>
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :value="5">
        本月最后一个
        <el-select v-model="weekday" clearable>
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>

    <el-form-item>
      <el-radio v-model="radioValue" :value="6">
        指定
        <el-select v-model="checkboxList" class="multiselect" clearable placeholder="可多选" multiple :multiple-limit="6">
          <el-option v-for="item in weekList" :key="item.key" :label="item.value" :value="item.key" />
        </el-select>
      </el-radio>
    </el-form-item>
  </el-form>
</template>
<!-- eslint-disable vue/no-side-effects-in-computed-properties -->

<script setup lang="ts">
  import { computed, ref, watch } from "vue";

  const emit = defineEmits(["update"]);
  const props = defineProps({
    cron: {
      type: Object,
      default: () => ({
        second: "*",
        min: "*",
        hour: "*",
        day: "*",
        month: "*",
        week: "?",
        year: ""
      })
    },
    check: {
      type: Function,
      // eslint-disable-next-line @typescript-eslint/no-empty-function
      default: () => {}
    }
  });
  const radioValue = ref(2);
  const cycle01 = ref(2);
  const cycle02 = ref(3);
  const average01 = ref(1);
  const average02 = ref(2);
  const weekday = ref(2);
  const checkboxList = ref<number[]>([]);
  const checkCopy = ref([2]);
  const weekList = ref([
    { key: 1, value: "星期日" },
    { key: 2, value: "星期一" },
    { key: 3, value: "星期二" },
    { key: 4, value: "星期三" },
    { key: 5, value: "星期四" },
    { key: 6, value: "星期五" },
    { key: 7, value: "星期六" }
  ]);
  const cycleTotal = computed(() => {
    cycle01.value = props.check(cycle01.value, 1, 6);
    cycle02.value = props.check(cycle02.value, cycle01.value + 1, 7);
    return cycle01.value + "-" + cycle02.value;
  });
  const averageTotal = computed(() => {
    average01.value = props.check(average01.value, 1, 4);
    average02.value = props.check(average02.value, 1, 7);
    return average02.value + "#" + average01.value;
  });
  const weekdayTotal = computed(() => {
    weekday.value = props.check(weekday.value, 1, 7);
    return weekday.value + "L";
  });
  const checkboxString = computed(() => {
    return checkboxList.value.join(",");
  });
  watch(
    () => props.cron.week,
    (value) => changeRadioValue(value)
  );
  watch([radioValue, cycleTotal, averageTotal, weekdayTotal, checkboxString], () => onRadioChange());
  function changeRadioValue(value: string) {
    if (value === "*") {
      radioValue.value = 1;
    } else if (value === "?") {
      radioValue.value = 2;
    } else if (value.indexOf("-") > -1) {
      const indexArr = value.split("-");
      cycle01.value = Number(indexArr[0]);
      cycle02.value = Number(indexArr[1]);
      radioValue.value = 3;
    } else if (value.indexOf("#") > -1) {
      const indexArr = value.split("#");
      average01.value = Number(indexArr[1]);
      average02.value = Number(indexArr[0]);
      radioValue.value = 4;
    } else if (value.indexOf("L") > -1) {
      const indexArr = value.split("L");
      weekday.value = Number(indexArr[0]);
      radioValue.value = 5;
    } else {
      checkboxList.value = [...new Set(value.split(",").map((item) => Number(item)))];
      radioValue.value = 6;
    }
  }
  function onRadioChange() {
    if (radioValue.value === 2 && props.cron.day === "?") {
      emit("update", "day", "*", "week");
    }
    if (radioValue.value !== 2 && props.cron.day !== "?") {
      emit("update", "day", "?", "week");
    }
    switch (radioValue.value) {
      case 1:
        emit("update", "week", "*", "week");
        break;
      case 2:
        emit("update", "week", "?", "week");
        break;
      case 3:
        emit("update", "week", cycleTotal.value, "week");
        break;
      case 4:
        emit("update", "week", averageTotal.value, "week");
        break;
      case 5:
        emit("update", "week", weekdayTotal.value, "week");
        break;
      case 6:
        if (checkboxList.value.length === 0) {
          checkboxList.value.push(checkCopy.value[0]);
        } else {
          checkCopy.value = checkboxList.value;
        }
        emit("update", "week", checkboxString.value, "week");
        break;
    }
  }
</script>

<style lang="scss" scoped>
  .el-input-number--small,
  .el-select,
  .el-select--small {
    margin: 0 0.2rem;
  }

  .el-select,
  .el-select--small {
    width: 8rem;
  }

  .el-select.multiselect,
  .el-select--small.multiselect {
    width: 17.8rem;
  }
</style>
